It is a real number, but it is not a whole number
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Well, honey, if you wanna find out what number 20.25 is 45% of, you just divide 20.25 by 0.45. That gives you 45, which is the number you're looking for. Math can be a real hoot sometimes, can't it?
Well, isn't that a happy little math problem! To find out what number we're looking for, we can set up a simple equation. If 75% of a number is 45, we can divide 45 by 0.75 to find the whole number. So, 45 divided by 0.75 equals 60. That's the number we're looking for!
45 is a rational number
There is only one number that equals 45.That number is: 45
Percent or Percentage effectively means hundredth. So if 1% of a number is 45, then 45 is 1/100 of the number you require, namely (100/1) x 45 = 4500 Then if 15% of a number is 45, then 45 is 15/100 of the number you require, namely :- (100/15) x 45 = 300